If you happen to stand on a piece of colored paper pick it up and turn right, if not put one down (from your vast supply of colored paper bits) and turn left instead. Now take one step forwards. Repeat.
Once you do this for a while you may or may not end up with a messy floor.
Langtons eXtreme amusement:
Date: 2005-02-24 07:10 pm (UTC)If you happen to stand on a piece of colored paper pick it up and turn right,
if not put one down (from your vast supply of colored paper bits) and turn
left instead. Now take one step forwards. Repeat.
Once you do this for a while you may or may not end up with a messy floor.
(from Rain, obviously)